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Mike you are correct, and helium shortens deco anyway.


Mike Rodriguez wrote:
> 
> At 11:35 PM 4/10/00 -0500, Scott Hunsucker wrote:
> 
> Hello Scott,
> 
> >obligation might be increased to an unrealistic point.  The addition of 25%
> >He to deco gases, except oxygen, has decreased the reported incidences of
> >problems and discomfort that is traditionally associated with pulmonary
> >oxygen toxicity; however, this step has the potential to increase thermal
> >considerations and might extend decompression times--hence it would not be
> >recommended for "average" dives.
> 
> What do you mean by "this step has the potential to increase thermal
> considerations"?  Do you mean that breathing helium makes you cold?
> I'm curious because the physics of the issue and practical experience
> show that breathing helium *does not* make you cold.  Adding helium
> to your drysuit makes you cold, yes, but breathing it does not for many
> of the same reasons you shouldn't put it in your drysuit.
> 
> -Mike Rodriguez
> <mikey@ma*.co*>
> Pn(x) = (1/(2^n)n!)[d/dx]^n(x^2 - 1)^n

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